Complete the square to determine the minimum or maximum value of the function the expression defines. x2 − 38x + 9 A) maximum value at 361 B) minimum value at −352 C) maximum va…

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asked Aug 23, 2020 175k views

2 Answers

Jordy Van Eijk · Answer 1 · 2020-08-26T07:56:46+0000

Answer:

minimum value at −352

Explanation:

First, set the expression equal to 0.

x2 − 38x + 9 = 0

Complete the square.

x2 − 38x = −9

x2 − 38x + 361 = 352

(x − 19)2 − 352 = 0

Therefore, the minimum value is −352.